如何停止jQuery帖子页面刷新 [英] How to stop jQuery post page refresh
问题描述
我正在通过PHP从MySQL数据库获取数据.我正在使用jQuery从发送并从PHP获取数据.这是代码.
I am getting data from an MySQL database through PHP. I am sending the and getting the data from PHP using jQuery. Here is the code.
$.POST("SubmitCode.php", $("#questionCodeForm").serialize(),'json').done(function(data) {});
现在的问题是,一旦我发送此数据,页面就会刷新.如何停止页面刷新.如果我删除"json",则页面将停止刷新,但问题是我想获取不刷新页面的json数据.我该怎么办?
Now the problem is that once I send this data the page refreshes. How can I stop the page refresh. If I delete 'json' then the page stops refreshing but the problem is that I want to get the json data without page refresh. How can I do this?
-------------------------------------------编辑后- -------------------------------------------------- ------------------------- 这是更新的代码
-------------------------------------------after edit----------------------------------------------------------------------------- Here is the updated code
$(document).ready(function() {
initialization();
codeSubmission();
});
function initialization() {
$("#answerForm").hide();
}
function codeSubmission() {
$("#submitButton").click(function(e) {
e.preventDefault();
$.post("SubmitCode.php", $("#questionCodeForm").serialize()).done(function(data) {
var questionName = data.questionName,
options = data.options,
pollingStatus = data.pollingStatus,
codeExist = data.codeExist;
alert(data);
alert(data[1]);
alert(questionName);
alert(options);
if(codeExist == true) {
$("#questionTitle").text("questionName");
for(rowNum=1;rowNum<=5;rowNum++) {
$("#checkbox-"+rowNum).val("Answer1");
$("#checkbox"+rowNum+"label").text("Answer"+rowNum);
}
$("#answerForm").slideDown(500);
} else if(codeExist == false) {
alert("This quiz code is invalid");
}
},'json');
//return false;
});
//return false;
}
现在的问题是,alert(questionName)的输出未定义.数据作为字符串传递.如何在正确的变量中获取正确的信息?
Now the problem is that the output of alert(questionName) is undefined. The data is passed as a string. How do I get the correct information in the correct variables?
推荐答案
您还必须在客户端解析json.您可以使用
You also have to parse the json on the client side. You can do this using
obj = jQuery.parseJSON(data);
obj = jQuery.parseJSON(data);
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